Diseases from Europe had a devastating effect on . A. Northern Farmers
B. Native Americans
C. Dutch Traders
D. The Quakers

B. Native Americans

Explanation:

When Columbus and his legionaries came to the Americas in 1492, they brought several diseases, namely Smallpox, to which they were immune. However, the Native Americans had never encountered these diseases and thus had no resistance to them. These diseases swept across the continent and killed somewhere around 90% of Native Americans.

the answer is can make savage brainliest now

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)